225351378 has 48 divisors (see below), whose sum is σ = 582281856. Its totient is φ = 61585920.

The previous prime is 225351377. The next prime is 225351383. The reversal of 225351378 is 873153522.

It is a happy number.

225351378 is a `hidden beast` number, since 22 + 53 + 513 + 78 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225351377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35983 + ... + 41778.

It is an arithmetic number, because the mean of its divisors is an integer number (12130872).

Almost surely, 2^225351378 is an apocalyptic number.

225351378 is an abundant number, since it is smaller than the sum of its proper divisors (356930478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225351378 is a wasteful number, since it uses less digits than its factorization.

225351378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77799 (or 77796 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 225351378 is about 15011.7080307339. The cubic root of 225351378 is about 608.5366499901.

The spelling of 225351378 in words is "two hundred twenty-five million, three hundred fifty-one thousand, three hundred seventy-eight".